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To maintain a healthy kidney the most advisable thing, according to the expert, is to eat a healthy, varied and balanced diet within the framework of the Mediterranean diet in which all the food groups are present; as long as you do not suffer from any kidney disease, our doctors point out.

In addition, “the consumption of sweets, sausages, commercial snacks and all kinds of industrial products and fast food should be moderated and all these recommendations should be complemented with the usual practice of physical activity, adapted to the individual characteristics of each one of us.


Blueberries have a low sugar content, and are rich in antioxidants and flavonoids. In addition, this fruit has certain astringent and antibacterial properties that make it a very appropriate food for the prevention of cystitis or urinary tract infections.

The best thing about this food is that it allows multiple options when consuming it: in juice, raw, milkshake … etc.. It depends on the imagination of the consumer.


This refreshing tuber contains water, mineral salts and vitamins. In addition, it has important diuretic properties and helps speed up our body’s waste disposal process.

This is also a food that gives multiple possibilities of consumption, in infusion, as added to salads or as desired.


This vegetable is composed of 91 percent water and contains a variety of minerals and trace elements such as calcium, magnesium, or iron, and considerable amounts of vitamins. In addition, it is a food rich in flavonoids and antioxidants beneficial to certain organs such as the kidneys and heart. Because of its properties, it also helps regulate metabolism and eliminate toxins that the body does not need.


Potatoes are high in vitamins and minerals, beneficial in maintaining a healthy and strong kidney. This food represents an important source of starch, potassium, magnesium, calcium, phosphorus, vitamins B and vitamin C that, among other benefits, helps in the body’s depurative process.

The most appropriate ways to consume them is: steamed, baked, microwave or in pressure cookers with little water, this way we ensure the consumption of most of its nutrients, minimizing losses during cooking.

Although there are certain foods whose beneficial contents help to maintain a strong and healthy kidney, the specialist points out that “we should not talk specifically about foods beneficial for kidney diseases and can even be dangerous, since in the diet of these people there are many factors involved. These include the stage of kidney disease in which they are and other possible concomitant diseases, such as diabetes mellitus or high blood pressure. For this reason, “a food that may be beneficial for one renal patient may be contraindicated for another”, he adds.

It should be noted that the nutritional recommendations of the renal patient are different depending on the stage of the disease in which he or she is: ERCA or predialysis, dialysis or substitutive renal treatment or transplant; which forces to modify the dietary recommendations in each one of them.

For all these reasons, “it is preferable to talk about recommended eating plans according to the clinical characteristics of the patient”, concludes the expert.